Quebrachitol

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quebrachitol
Chemical structure of quebrachitol
IUPAC name

(1R,2S,4S,5R)-6-methoxycyclohexane-1,2,3,4,5-pentol

Other names

Quebrachitol
L-Quebrachitol
(-)-Quebrachitol
2-O-methyl-l-inositol
2-0-methyl-chiro-inositol

Identifiers
CAS number 642-38-6 N=
PubChem 151108
ChemSpider 10254652 YesY
ChEMBL CHEMBL501109 YesY
Jmol-3D images Image 1
Properties
Molecular formula C7H14O6
Molar mass 194.18 g/mol
Appearance White to off-white powder
Melting point 190 - 198 °C
Solubility in water Soluble in DMSO, dimethyl formamide, or water
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Quebrachitol is a naturally occurring optically active cyclitol, a cyclic polyol. It can be found in Allophylus edulis[1] and in the serum left after the coagulation of the of Hevea brasiliensis latex in the operation of rubber tapping.[2] It is also found in Cannabis sativa,[3] in Paullinia pinnata and in seabuckthorn.[4]

It was first isolated by Tanret in 1887 from the bark of Aspidosperma quebracho. The substance was tested as a sweetening agent for diabetics in 1933. It shows a sweetening property half of that of sucrose but induces colic or diarrhoea at concentration used to render the food palatable.[5]

Quebrachitol is a versatile building block in the construction of naturally occurring bioactive materials.[6] For example, its conversion into antifungal (E)-β-methoxyacrylate, oudemansin X has been made.[7]

References

  1. ↑ First record of l-quebrachitol in Allophylus edulis (Sapindaceae). Martina Díaz, Andrés González, Ian Castro-Gamboa, David Gonzalez and Carmen Rossini, Carbohydrate Research, Volume 343, Issue 15, 13 October 2008, Pages 2699-2700, doi:10.1016/j.carres.2008.07.014
  2. ↑ Quebrachitol. Jan van Alphen, Ind. Eng. Chem., 1951, 43 (1), pp 141–145, doi:10.1021/ie50493a041
  3. ↑ 1955 - ACTA UNIVERSITATIS PALACKIANAE OLOMUCENSIS - TOM. VI. - HEMP AS A MEDICAMENT, Properties of isolated substances. Prof. Jan Kabelik, A brief survey of the methods of isolation and the physical and chemical properties and structures of the isolated antibacterial substances. F. Santavy & Z. Krejci
  4. ↑ Some new data about antiviral and related activities of seabuckthorn principals and the prospects of their use. Shipulina L.D., All-Russian Research Institute of Medicinal and Aromatic Plants, Moscow, Russia
  5. ↑ An investigation of quebrachitol as a sweetening agent for diabetics. Robert Alexander McCance and Robert Daniel Lawrence, Biochem J. 1933; 27(4): 986–989
  6. ↑ Quebrachitol: A Versatile Building Block in the Construction of Naturally Occurring Bioactive Materials. James J. Kiddle, Chem. Rev., 1995, 95 (6), pp 2189–2202, doi:10.1021/cr00038a016
  7. ↑ Total synthesis of antibiotic (−)-oudemansin X utilizing L-quebrachitol as a chiral pool. Chida N., Yamada K. and Ogawa S., Chemistry Letters, 1992, no4, pp. 687-690

External links

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